spacedesk is a free app that lets you use an Android tablet as a second display for your Windows PC. Learn how to set up and use it.

Fortunately, though, there’s a free way to use old iPads, Android tablets, or even other laptops as extra monitors for your Windows PC. The solution is a utility called Spacedesk.

Duet Display lets you use any Android device as a second screen for your Mac, whether wired or wireless, giving you extra space for multitasking.